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Chemical constituents of Nouelia insignis Franch

Chemical constituents of Nouelia insignis Franch Two new diterpenes and ent-15α-hydroxykaur-16-en-19-oic acid 11,12-acetonide (3), together with 23 known compounds were isolated from the dried aerial parts of Nouelia insignis Franch. The structures of new compounds were determined to be ent-14β,15α-dihydroxykaur-16-en-19-oic acid (1), ent-14β-hydroxy-15-oxokaur-16-en-19-oic acid (2) on the basis of spectral and chemical evidence. The structure of ent-11α,16α-epoxy-15α-hydroxy-16S-kaur-19-oic acid (4) was confirmed by X-ray crystallographic analysis. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Asian Natural Products Research Taylor & Francis

Chemical constituents of Nouelia insignis Franch

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References (20)

Publisher
Taylor & Francis
Copyright
Copyright Taylor & Francis Group, LLC
ISSN
1477-2213
eISSN
1028-6020
DOI
10.1080/10286020701189500
pmid
18253880
Publisher site
See Article on Publisher Site

Abstract

Two new diterpenes and ent-15α-hydroxykaur-16-en-19-oic acid 11,12-acetonide (3), together with 23 known compounds were isolated from the dried aerial parts of Nouelia insignis Franch. The structures of new compounds were determined to be ent-14β,15α-dihydroxykaur-16-en-19-oic acid (1), ent-14β-hydroxy-15-oxokaur-16-en-19-oic acid (2) on the basis of spectral and chemical evidence. The structure of ent-11α,16α-epoxy-15α-hydroxy-16S-kaur-19-oic acid (4) was confirmed by X-ray crystallographic analysis.

Journal

Journal of Asian Natural Products ResearchTaylor & Francis

Published: Feb 1, 2008

Keywords: Nouelia insignis; Ent -kaurene; Diterpenic acid; Sesquiterpene lactone; Steroid

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